I have a jPlayer playlist that works fine in all browsers except Firefox. The issue is with non-standard characters, i.e. characters with accents or asian characters. I have set up a demo playlist so that you can see [http://monthlymixup.com/mixups/july_2012/index.php here]. When I enter the characters in UTF-8 form (track 1 in the playlist) they work on all browsers except for Firefox, and when I enter them in ISO Latin 1 (track 2 in the playlist) they work in Firefox but no other browsers. So, for instance in Firefox 大å°æ¸æ¿.mp3 works, whereas 大地書房.mp3 doesn't. There is a meta tag for UTF-8 on the demo page, i.e. My understanding is that Firefox overwrites this with the response header if a default encoding isn't set in FF. I have however set UTF-8 to be the default encoder and I have checked that the page is using UTF-8 by going to Tools/Page Info (I am on a Mac and I believe this is the way to check the encoding on the page). So, I'm at a loss as to what is going on, and would be glad of some help.